How many to a builder's bag?

[1Bee]

What do you reckon? Can I get a tromboncino, sunflower and pumpkin into a builder's bag filled with home made compost, manure and soil?

Could I get another pumpkin in there, too?

[Mr Bones]

I don't see why not. One in each corner(ish) and probably room for something else in the middle. A builders bag can hold a good volume of soil/compost, how about a few trailing lobelia or similar round the edges to fill any gaps and help preserve moisture

[burnie]

Builders bags hold a tonne of sand/stone etc, that is a lot of soil and compost

[MyWifesBrassicas]

Those tonne builders bags make fantastic hot beds/compost makers.
Fill them full of straw and manure layers in Feb, compact it down and put a hoop greenhouse on top.
Great for early production of salads and then when it cools by the beginning of June, the compost is very suitable for growing squashes

[MyWifesBrassicas]

What do you reckon? Can I get a tromboncino, sunflower and pumpkin into a builder's bag filled with home made compost, manure and soil?

Could I get another pumpkin in there, too?

Theres a tonne of soil/compost/manure in those bags, should easily be able to grow them

[MelanieSW]

Sunflowers have a tendency to kill/affect plants around it, I probably would put them in a container of their own.

[Derbydal]

I put 4 courgettes in them and they grow very well! atb Dal. should add they are full of compost in the making covered with black polythene with holes for the plants.

[SarrissUK]

If you train the tromboncino upwards, I'd put two or three of them in, as well as three or four trailing squashes.

[1Bee]

Woo hoo! Thanks guys!

[rary]

Last year I grew 2 trombos 1 pumpkin and a courgette in a builders bag the courgette was very poor and I had to remove one of the trombos, the filling for the bag was made up with wood chip, seaweed, manure, compost, sand and some soil, I will be using the same bag again this year and I have topped it up with bags of seaweed and manure but I will only be growing 2 trombos in it